Thanks for following up @Justin_Harris! As mentioned by Bastien here, the field must be added to the Org library to show in Advanced Search results. Is the Auto ID field added to your Org’s library?
If not, this is expected behaviour 
Thanks for following up @Justin_Harris! As mentioned by Bastien here, the field must be added to the Org library to show in Advanced Search results. Is the Auto ID field added to your Org’s library?
If not, this is expected behaviour